Apparatus used in drawing yarn vertically from bobbins



Spt. 24, 1935.

c. HERRMANN APPARATUS'USED IN DRAWING YARN VERTICALLY FROMBBBINS FiledMarch 24, 1933 III SMW

Patented Sept 7 h N TE srArns- PATENT. OFFICE -mm'rususnn m nmiwn'vcrsmvvnn'rrcmr FROM nonnms Delaware V g g g Application March 24,1933,Serial No. 862,419 ImGcrmany April 13, 1932 zcni u. unme -12s) 1 Thisinvention relates to a device for min. The subject matter 'ofapplicant's invention the manufacture oi artificial filaments but priistherefore the devising ot'a spool and means for marily has .ior itsobieot to pr v e n improved using such a spool which will overcome theaforespool for drawing the yarn vertically therefrom mentioneddeficlences which arise in twisting op-v i'w ut n n-' erations where thethread is drawn vertically Another object of the present invention is tofrom the spools or bobbins," a

p vi e a p o ed pool hav a e ovable In thedrawing in which like numeralsof reiend. Y erence indicate like parts, I represents the tube Stillmother object of the present invention portion of the spool which hasat. its lower or is to providean impr v d 89001 r by when base-endalargedisc-portion 2 w chis or a dime yarn body 1 n unwound to a certain eterlarge enough to. take the maximum yarn extent. the upper end can beraised to eliminate ackage. The upper flange 3 is o! a smaller ditensionduring unwinding. ameter for reasonslater more fully disclosed. 1

These and other objects will in part become The tube'oi the spool I hasinserted 'withinit M and 111 p be Pointed 011'? in the 1- a smaller tubel'having on its upper end a flange l w spe ifi i n nd he awin r i I ofthe same diameter as the baseflange 2. The which: flange 5 has a recess6 for the purpose of allow- Figure 1 is a vertical central section of acoming the upper flange 3, oithe spool to flt snugly pletely wound spooloi. thetype which is the subwithin it.

2 1 11 matter 0 this pp n; an t The lower end of the'tube insert 4is'threaded b Fi 2 i a e a central ti o the asat lit for the purpose ofbeing securely fastened parts illustrated in lf-igure rm position tohave by t], This arrangement t t en as the the removable end ra)sed'by hme 11 1 usual spool. However, thepurpose oi devising -trated. X l thistype ot'spool'is'illustratedin Figure 201 the I In the constructing ofdisc spools'it has heredrawing, 25 toio b n ce t av the fla In order tounwind the yam from the spool tor discs of the spool not exceed acertain proporh urposes as twisting or similar operations 151 w respectto t core diameter O the where the thread must be drawn vertically fromsn In the event that the disc diameter chosen the bobbin, the spoolislaid upon table 0 provided 'does not correspond to this proportion, i.e., if it h an opening 9 through wmcha 1 19p to is larger than theproportion necessary, it is not m e u; ,1 is first removed andv t pos be to aw h filaments vertically from the threaded end 4a or thetube-insert member 4 is bobbins or spools without encountering anexcesplaced over t e projecting bolt lliwhi h i shoullive stresstension-due to r t 9 e thread dered at u for the purpose or acting asanabut as against the upper disc ment for the tube insert [which has aslidin Frequently however, it is desirable to. w at flt within the spooltube 1. Thetablel-has also large quantity or yarn on disc spools. Inorder a centering ring nwitmnm which the base to-protect the filamentsfrom the extreme tensile flange g is v I r a stress involvedduring'unwinding, it has been a y; m guppgrted gut t hd "by Pmmm prpvmthe with removable an operating lever it which is pivoted at II, to a 40flanges This has disadvantage, howeveri bracket it secured tothe undersideot the'table. leaving y k unprotected The other -endgo1 theleveris--connected to an end from which the flange has been removed so Qmmtmg{0d :ff' thatthe threadlayers tend to fall oil or tangle. the m itentlllustrated i Figure 2, the love? u is dra dimmme Further it been tothe position shown in dotted li'nes, by'the'opsuggested to divideone-disc in two concentric S t d t t m' crating rod '1. By SO dOing thea p l only partially. a; e., up to a diameter or member raised, em thflange 5 60 the yarn body which corresponds to the diamh at this i mcause emem'e u herep of the thread.

eter of the inner art-oi the'disc. After, the -reh The 5 is moval or theouter part or the disc. the remainder j fi stress which the i wouldoccasio of the/yarn is drawn oil. This procedure has the the filamentsthrough friction is eliminated. V disadvantage that it is necessary tointerrupt the Having now described the invention, it is be- After thethreadfhas been drawn: ofl to the ex- "lievedthat its construction,-operation and ad 6 vantages will be readily apparent to any one skilledin the art to which it refers. What is claimed is: i. In combination, aspool having flanges at each end, one. of said flanges being smallerthan the other, said smaller flange fitting within another largerflange, the last-named flange being integrally attached to a tubeinsert, which tube insert has a slidable flt within the spool body, anda table having centering e means for positioning said spool and othermeans for raising said tube insert and flange integral thereto.

2. In combination, aspool having flanges at each end, one of saidflanges being smaller than at its center to a bracket under said tableand operated by a draw rod attached at the opposite end of said lever.

